Typescript compile-time conditional for browser vs server code

Question

I'm trying to share code between browser and server parts of a web app. It might be useful to have something like an #if conditional. Is there anything like that in Typescript?

For example:

interface Card {
    id: Uuid
    text: string
    created_dt: Date
}

One the server, Uuid is a type from a database library. On the browser I'll need to use something else.

Hypothetical code:

#if compiling_for_browser
type Uuid = somelib.Uuid
#else
type Uuid = database_lib.types.Uuid
#endif

interface Card ...

Answer 1

It appears that this is the most popular library implementing conditional compilation https://github.com/nippur72/ifdef-loader

The TypeScript team has not implemented it and doesn't seem to be moving quickly to do so, for my use (same use case, basically) I'm going to try some of the webpack conditional compilation items so I can build easily for web and react-native